d381b0fdec
Implement native thread stack overflow check Implement post-MVP: Non-trapping float-to-int conversions Implement post-MVP: Sign-extension operators Enhance WASM loader checks
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#include "wasm_exec_env.h"
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#include "wasm_runtime_common.h"
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WASMExecEnv *
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wasm_exec_env_create(struct WASMModuleInstanceCommon *module_inst,
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uint32 stack_size)
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{
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uint64 total_size = offsetof(WASMExecEnv, wasm_stack.s.bottom)
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+ (uint64)stack_size;
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WASMExecEnv *exec_env;
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if (total_size >= UINT32_MAX
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|| !(exec_env = wasm_runtime_malloc((uint32)total_size)))
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return NULL;
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memset(exec_env, 0, (uint32)total_size);
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#if WASM_ENABLE_AOT != 0
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if (!(exec_env->argv_buf = wasm_runtime_malloc(sizeof(uint32) * 64))) {
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wasm_runtime_free(exec_env);
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return NULL;
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}
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#endif
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exec_env->module_inst = module_inst;
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exec_env->wasm_stack_size = stack_size;
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exec_env->wasm_stack.s.top_boundary =
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exec_env->wasm_stack.s.bottom + stack_size;
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exec_env->wasm_stack.s.top = exec_env->wasm_stack.s.bottom;
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return exec_env;
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}
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void
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wasm_exec_env_destroy(WASMExecEnv *exec_env)
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{
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#if WASM_ENABLE_AOT != 0
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wasm_runtime_free(exec_env->argv_buf);
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#endif
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wasm_runtime_free(exec_env);
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}
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WASMModuleInstanceCommon *
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wasm_exec_env_get_module_inst(WASMExecEnv *exec_env)
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{
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return exec_env->module_inst;
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}
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void
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wasm_exec_env_set_thread_info(WASMExecEnv *exec_env)
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{
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exec_env->handle = os_self_thread();
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exec_env->native_stack_boundary = os_thread_get_stack_boundary()
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+ RESERVED_BYTES_TO_NATIVE_STACK_BOUNDARY;
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}
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